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Abstract            Volume:12  Issue-10  Year-2024         Original Research Articles


Online ISSN : 2347 - 3215
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcret@gmail.com

Incidence of Pink bollworm Pectinophora gossypiella (Saunders) in Bt cotton in Different Agro Ecological Zones of Andhra Pradesh, India
M. Sivarama Krishna1*, L. Vijaya Bhaskar2, N. C. Venkateswarlu3, K. Viswanath4
and B. Ramana Murthy5
1Scientist (Ento), RARS, Nandyal In-Service Phd student. S.V.Agricultural College, Tirupati, Acharya.N.G.Ranga Agricultural University, Andhra Pradesh, India 2Professor & Head, Department of Entomology, Agricultural college, Mahanandi, Acharya N.G.RangaAgricultural University, Andhra Pradesh, India 3Director, Polytechnics, Acharya N.G.Ranga Agricultural University, Lam, Guntur,Andhra Pradesh, India 4Senior Scientist, (Pathology) Department of Pathology, RARS, Tirupati, Acharya N.G.Ranga AgriculturalUniversity, Andhra Pradesh, India 5Assistant Professor, Department of Statistics and computer applications, S.V.Agricultural College,Tirupati. Acharya N.G.Ranga Agricultural University, Andhra Pradesh, India
*Corresponding author
Abstract:

Pink bollworm has emerged as a major threat for successful cotton cultivation in Andhra Pradesh, extensive random roving survey was conducted in three major cotton growing districts of Kurnool, Guntur and Krishna during 2021 and 2022 seasons to assess the dynamics of pink bollworm infestation. During the year 2021 rosette flower incidence, green boll, open boll and locule damage ranged from 1.8-6.8, 16.6-31.6, 14.9-53.1 and 13.4- 28.4 respectively. During 2022 rosette flower incidence, green boll, open boll and locule damage ranged from 1.8-8.0, 19.3-31.5, 34.5-59.4 and 14.3-32.8 respectively. Gradual progression of pink bollworm infestation was noticed with the advancement of crop season.

Keywords: Pink bollworm, Rosette flower, Green boll damage.
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How to cite this article:

Sivarama Krishna, M., L. Vijaya Bhaskar, N. C. Venkateswarlu, K. Viswanath and Ramana Murthy, B. 2024. Incidence of Pink bollworm Pectinophora gossypiella (Saunders) in Bt cotton in Different Agro Ecological Zones of Andhra Pradesh, India.Int.J.Curr.Res.Aca.Rev. 12(10): 95-100
doi: https://doi.org/10.20546/ijcrar.2024.1210.010
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.


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